Precision of Acetabular Cup Placement in Robotic Integrated Total Hip Arthroplasty

Aims The aim of this study was to assess the efficacy of stereotactic-arm assisted acetabular component placement during total hip arthroplasty (THA). Methods 120 patients underwent primary THA at 4 different medical centres. A preoperative pelvic CT protocol was used to plan socket placement follow...

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Bibliographic Details
Published in:Hip international 2015-11, Vol.25 (6), p.531-536
Main Authors: Elson, Leah, Dounchis, Jon, Illgen, Richard, Marchand, Robert C., Padgett, Douglas E., Bragdon, Charles R., Malchau, Henrik
Format: Article
Language:English
Subjects:
Acetabulum
Aged
Arthroplasty, Replacement, Hip
Female
Hip Prosthesis
Humans
Joint Diseases - etiology
Joint Diseases - pathology
Joint Diseases - surgery
Male
Middle Aged
Operative Time
Reproducibility of Results
Robotic Surgical Procedures
Stereotaxic Techniques
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Summary:Aims The aim of this study was to assess the efficacy of stereotactic-arm assisted acetabular component placement during total hip arthroplasty (THA). Methods 120 patients underwent primary THA at 4 different medical centres. A preoperative pelvic CT protocol was used to plan socket placement followed by robotic-arm assisted acetabular preparation and cup insertion. Intraoperative cup position was recorded and postoperative placement measured using Martell suite analysis software. Results Using a 95% predictive intervals, robotic-arm cup placement was within +/-4 degrees of planned position in 95% of cases. Applying these data to the so-called safe zone, 96% of sockets were within the defined safe zone. Our data confirms that intraoperative robotic assistance improves the precision of preparation and position of the acetabular cup during total hip arthroplasty.
ISSN:1120-7000
1724-6067
DOI:10.5301/hipint.5000289